GMRS custom and usage
Welcome to GMRS B Chief!
Just about all the repeater systems I have made contact on over the years just use plain English. When I am traveling and I want to make contact I keep it pretty simple and using regular language. Something like, "This is KAA 8142, Chicago unit 504, is there anybody on the 675 system here in _____?" If I don't get an answer after 2 or at the most 3 tries, I say something like "Chicago unit 504 clear, KAA 8142." For example, when I was traveling in Seattle a couple of years ago, that approach worked well and I got an answer on .675. They gave me some directions and traveller assistance. (I later found out the system was part of the Seattle Earthquake Communications Hubs.)
On systems where I already know someone I say something like "Chicago 504 to Washington 475." Or "This is Chicago 504, is there anyone on the Washington System?" Pretty simple and straightforward. Unit numbers are pretty prevalent on the more organized GMRS repeaters. Most such repeaters have system names, for example the 725 system in Evanston, Illinois is called the "UComm" system, UComm 592 is the owner. Our NSEA systems are just called "Chicago" systems.
Some systems are closed, that is they do no want other people utilizing their repeater at all (like one in Brooklyn, New York). That may be why they don't answer you. Of course that's their prerogative, so I just sign out and forget it.
Bear in mind than many of the early personal GMRS repeaters were put up by former Class D users who started out there BEFORE the trucker take over of 27 MHz. CB slang is the LAST thing we ever want to hear on GMRS! LOL. Handles are NEVER used, we just stick to real names, e.g., "the name here is Randy".
Also, most systems I am familiar with emphasize a more efficient, business-like form of communication in contrast to the longer more chat like conversations prevalent in Ham 2 meters. For example, on the Chicago systems, if a transient user starts to engage in a longer conversation more than a couple of minutes, we (politely) encourage them to not tie up the frequency too long. This is an extension of GMRS radio net customs from public service projects, emergency operations, weekly radio nets, etc. (Really long winded users are referred to as "toggle-switch" operators, LOL.)
I wouldn't worry about any special "lingo" etc. Just be yourself and most systems I am familiar with will welcome you! If you would like to know more about GMRS public service group net procedure, I could point you to instructions for that posted on our website, just let me know if you are interested.
Again, welcome to GMRS!!!
Randy Knowles, KAA 8142.